Articles related to "Phanerozoic"



The Largest Mass Extinction of the Phanerozoic
Although scientists know the extinction event that marked the end of the Permian was the largest in magnitude, there is general disagreement regarding its causes.
permian triassic mass extinction major mass extinctions phanerozoic permian triassic

The Late Ordovician Mass Extinction
Although not well-known to the public and typically overlooked by the press, the late Ordovician mass extinction event is the most understood by paleontologists.
late ordovician mass extinction mass extinction event phanerozoic phanerozoic extinctions

Eons and Eras in Geology and Paleontology
To truly begin to understand paleontology, it is first important to have a good grasp on the basic geological timeline in which all life has existed.
geological periods eons eras geological timeline cenozoic

Understanding Time and Rock Units in Geology
Geologists use three different units to help in their study of the history of the earth. Time units represent the continuous flow of time through geologic history, rock units represent the different lithologies found across the globe, and time-rock units represent all the rocks formed worldwide during a specific period of geologic time. This week we will examine these units and how they relate to each other.
geology geophysics earth science stratigraphy time


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